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## org.mule.api.transport
Interface MessageDispatcherFactory

All Known Implementing Classes:
  AbstractMessageDispatcherFactory, AjaxMessageDispatcherFactory, AxisMessageDispatcherFactory, AxisWsdlMessageDispatcherFactory, CxfMessageDispatcherFactory, CxfWsdlMessageDispatcherFactory, EjbMessageDispatcherFactory, FileMessageDispatcherFactory, FtpMessageDispatcherFactory, HttpClientMessageDispatcherFactory, HttpsClientMessageDispatcherFactory, JdbcMessageDispatcherFactory, JmsMessageDispatcherFactory, KeyedPoolMessageDispatcherFactoryAdapter, ProcessMessageDispatcherFactory, QuartzMessageDispatcherFactory, RmiMessageDispatcherFactory, SmtpMessageDispatcherFactory, StdioMessageDispatcherFactory, TcpMessageDispatcherFactory, UdpMessageDispatcherFactory, UnsupportedMessageDispatcherFactory, VMMessageDispatcherFactory, XmppMessageDispatcherFactory

    public interface MessageDispatcherFactory

`MessageDispatcherFactory` is a factory interface for managing the lifecycles of a transport's message dispatchers. The methods basically implement the `KeyedPoolableObjectFactory` lifecycle, with a `ImmutableEndpoint` as the key and the dispatcher as pooled object.

Method Summary
`void` | `activate(OutboundEndpoint endpoint, MessageDispatcher dispatcher)` Invoked before the given dispatcher is handed out to a client, but not after `create(OutboundEndpoint)`.
`MessageDispatcher` | `create(OutboundEndpoint endpoint)` Creates a new message dispatcher instance, initialised with the passed endpoint.
`void` | `destroy(OutboundEndpoint endpoint, MessageDispatcher dispatcher)` Invoked when a dispatcher returned `false` for `validate(OutboundEndpoint, MessageDispatcher)`.
`boolean` | `isCreateDispatcherPerRequest()` Controls whether dispatchers are cached or created per request.
`void` | `passivate(OutboundEndpoint endpoint, MessageDispatcher dispatcher)` Invoked immediately before the given dispatcher is returned to its pool.
`boolean` | `validate(OutboundEndpoint endpoint, MessageDispatcher dispatcher)` Invoked after the dispatcher is returned from a client but before it is prepared for return to its pool via `passivate(OutboundEndpoint, MessageDispatcher)`.

Method Detail

### isCreateDispatcherPerRequest

    boolean isCreateDispatcherPerRequest()

  Controls whether dispatchers are cached or created per request. Note that if an exception occurs in the dispatcher, it is automatically disposed of and a new one is created for the next request. This allows dispatchers to recover from loss of connection and other faults. When invoked by `validate(OutboundEndpoint, MessageDispatcher)` it takes precedence over the dispatcher's own return value of `MessageDispatcher.validate()`.

  Returns:
    true if created per request

### create

    MessageDispatcher create(OutboundEndpoint endpoint)
                             throws MuleException

  Creates a new message dispatcher instance, initialised with the passed endpoint. The returned instance should be immediately useable.

  Parameters:
    `endpoint` - the endoint for which this dispatcher should be created
  Returns:
    a properly created `MessageDispatcher` for this transport
  Throws:
    `MuleException` - if the dispatcher cannot be created

### activate

    void activate(OutboundEndpoint endpoint,
                  MessageDispatcher dispatcher)
                  throws MuleException

  Invoked before the given dispatcher is handed out to a client, but not after `create(OutboundEndpoint)`.

  Parameters:
    `endpoint` - the endpoint of the dispatcher
    `dispatcher` - the dispatcher to be activated
  Throws:
    `MuleException` - if the dispatcher cannot be activated

### validate

    boolean validate(OutboundEndpoint endpoint,
                     MessageDispatcher dispatcher)

  Invoked after the dispatcher is returned from a client but before it is prepared for return to its pool via `passivate(OutboundEndpoint, MessageDispatcher)`.

  Parameters:
    `endpoint` - the endpoint of the dispatcher
    `dispatcher` - the dispatcher to be validated
  Returns:
    `true` if the dispatcher is valid for reuse, `false` otherwise.

### passivate

    void passivate(OutboundEndpoint endpoint,
                   MessageDispatcher dispatcher)

  Invoked immediately before the given dispatcher is returned to its pool.

  Parameters:
    `endpoint` - the endpoint of the dispatcher
    `dispatcher` - the dispatcher to be passivated

### destroy

    void destroy(OutboundEndpoint endpoint,
                 MessageDispatcher dispatcher)

  Invoked when a dispatcher returned `false` for `validate(OutboundEndpoint, MessageDispatcher)`.

  Parameters:
    `endpoint` - the endpoint of the dispatcher
    `dispatcher` - the dispatcher to be validated

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